1. University of Alabama at Birmingham Birmingham AL USA
2. CentraCare Health St. Cloud MN USA
3. Nemours/Alfred I. DuPont Hospital for Children Wilmington DE USA
4. Children’s Hospital of Alabama Birmingham AL USA
5. Children’s Hospital Colorado, University of Colorado Aurora CO USA
6. University of California – San Francisco San Francisco CA USA
7. Northwestern University, Lurie Children’s Hospital of Chicago Chicago IL USA
8. Children’s Mercy Hospital, University of Missouri‐Kansas City Kansas City MO USA
9. Louisiana State University, Children’s Hospital of New Orleans New Orleans LA USA
10. Akron Children’s Hospital, Northeast Ohio Medical University Akron OH USA
11. Wake Forest Baptist Medical Center Winston‐Salem NC USA
12. Women’s College/Hospital for Sick Children Toronto ON Canada
13. Children’s Hospital of Philadelphia, University of Pennsylvania Philadelphia PA USA
14. Cincinnati Children’s Hospital Medical Center, University of Cincinnati Cincinnati OH USA